/* ============================================
   BCRI WEBSITE - GLOBAL STYLES
   Production-Ready CSS for Premium Academic Research Hub
   ============================================ */

/* ============================================
   1. CSS CUSTOM PROPERTIES (Variables)
   ============================================ */
:root {
  /* Primary Color Palette - Forest Green + Cream (Natural) */
  --primary-green: #45B649;
  --primary-teal: #7FD56D;
  --lime-accent: #66BB6A;
  --soft-lime: #F0F8ED;
  --forest-green: #2E7D32;
  
  /* Neutral Colors */
  --white: #ffffff;
  --off-white: #f8faf9;
  --light-gray: #e8ebe9;
  --medium-gray: #7a7a7a;
  --dark-gray: #3a3a3a;
  --charcoal: #1a1a1a;
  
  /* Gradients - Forest Green + Earthy Cream Spectrum */
  --gradient-primary: linear-gradient(135deg, #45B649 0%, #7FD56D 100%);
  --gradient-lime: linear-gradient(135deg, #45B649 0%, #66BB6A 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(69, 182, 73, 0.9) 0%, rgba(127, 213, 109, 0.9) 100%);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.15);
  --glass-backdrop: blur(10px);
  --glass-border: rgba(255, 255, 255, 0.2);
  
  /* Typography */
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3rem;
  
  /* Font Weights */
  --fw-light: 300;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s ease-in-out;
  --transition-base: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
  --shadow-glass: 0 8px 32px rgba(31, 38, 135, 0.15);
  
  /* Z-Index Scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
}

/* ============================================
   2. RESET & NORMALIZE
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  color: var(--charcoal);
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Remove default button/input styles */
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================
   3. GLOBAL LAYOUT COMPONENTS
   ============================================ */

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-md);
  }
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Flex Utilities */
.flex {
  display: flex;
  gap: var(--space-md);
}

.flex-center {
  align-items: center;
  justify-content: center;
}

.flex-between {
  justify-content: space-between;
  align-items: center;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

/* ============================================
   4. HEADER & NAVIGATION
   ============================================ */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--space-sm) 0;
  transition: all var(--transition-base);
}

header.scrolled {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  background: rgba(255, 255, 255, 0.12);
}

/* Logo */
.logo {
  font-size: var(--font-size-xl);
  font-weight: var(--fw-bold);
  color: var(--primary-green);
  letter-spacing: -1px;
  text-transform: uppercase;
  transition: color var(--transition-base);
}

.logo:hover {
  color: var(--primary-teal);
}

.logo span {
  color: var(--primary-teal);
}

/* Navigation Menu */
nav {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

nav a {
  font-size: var(--font-size-sm);
  font-weight: var(--fw-medium);
  color: var(--charcoal);
  position: relative;
  padding: var(--space-xs) 0;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-green);
  transition: width var(--transition-fast);
}

nav a:hover::after {
  width: 100%;
}

nav a.active {
  color: var(--primary-green);
}

nav a.active::after {
  width: 100%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 24px;
  height: 24px;
}

.mobile-menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: all var(--transition-base);
}

@media (max-width: 768px) {
  nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--light-gray);
    padding: var(--space-md);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
  }
  
  nav.active {
    max-height: 400px;
  }
  
  nav a {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--light-gray);
  }
  
  nav a::after {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
}

/* ============================================
   5. HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 100px var(--space-lg) var(--space-2xl);
  background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0.75) 100%), url('https://images.unsplash.com/photo-1497633762265-25ef88dd9124?w=1920&h=1080&fit=crop');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0.3) 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--fw-bold);
  line-height: 1.2;
  background: linear-gradient(135deg, #45B649 0%, #7FD56D 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
  text-shadow: none;
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--charcoal);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
  text-shadow: none;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease-out 0.3s both;
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 120px var(--space-md) var(--space-xl);
    background-attachment: scroll;
  }
  
  .hero h1 {
    font-size: var(--font-size-3xl);
  }
  
  .hero p {
    font-size: var(--font-size-base);
  }
}

/* ============================================
   6. BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 12px 28px;
  font-size: var(--font-size-sm);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

/* Primary Button */
.btn-primary {
  background: var(--primary-green);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: var(--forest-green);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Secondary Button */
.btn-secondary {
  background: var(--white);
  color: var(--primary-green);
  border: 2px solid var(--primary-green);
}

.btn-secondary:hover {
  background: var(--soft-lime);
  border-color: var(--forest-green);
}

/* Tertiary Button (Ghost) */
.btn-tertiary {
  background: transparent;
  color: var(--primary-green);
  border: 2px solid var(--primary-green);
}

.btn-tertiary:hover {
  background: var(--soft-lime);
}

/* Large Button */
.btn-lg {
  padding: 16px 36px;
  font-size: var(--font-size-base);
}

/* Small Button */
.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-xs);
}

/* Teal Variant */
.btn-teal {
  background: var(--primary-teal);
  color: var(--white);
}

.btn-teal:hover {
  background: #156271;
  transform: translateY(-2px);
}

/* ============================================
   7. CARDS
   ============================================ */

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--light-gray);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  height: 80px;
  display: flex;
  align-items: center;
}

.card-title {
  font-size: var(--font-size-lg);
  font-weight: var(--fw-semibold);
  color: var(--charcoal);
  margin-bottom: var(--space-sm);
}

.card-content {
  color: var(--medium-gray);
  font-size: var(--font-size-sm);
  line-height: 1.8;
  flex-grow: 1;
  margin-bottom: var(--space-md);
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--primary-green);
  font-weight: var(--fw-medium);
  text-decoration: none;
  transition: gap var(--transition-fast);
}

.card-link:hover {
  gap: var(--space-sm);
}

/* Glass Card Variant */
.card-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
}

/* ============================================
   8. SECTION STYLES
   ============================================ */

section {
  padding: var(--space-2xl) 0;
}

section:nth-child(even) {
  background: var(--off-white);
}

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--fw-bold);
  color: var(--charcoal);
  margin-bottom: var(--space-md);
  text-align: center;
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--medium-gray);
  margin-bottom: var(--space-2xl);
  text-align: center;
  line-height: 1.8;
}

.section-divider {
  width: 80px;
  height: 4px;
  background: var(--gradient-primary);
  margin: var(--space-lg) auto;
  border-radius: 2px;
}

@media (max-width: 768px) {
  section {
    padding: var(--space-xl) 0;
  }
  
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .section-subtitle {
    font-size: var(--font-size-base);
  }
}

/* ============================================
   9. FOOTER
   ============================================ */

footer {
  background: var(--charcoal);
  color: var(--white);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-section h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-md);
  color: var(--lime-accent);
}

.footer-section ul {
  list-style: none;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
  display: block;
  padding: var(--space-xs) 0;
  font-size: var(--font-size-sm);
}

.footer-section a:hover {
  color: var(--lime-accent);
}

.social-icons {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  transition: all var(--transition-base);
  font-size: 1.25rem;
  padding: 0;
}

.social-icons a:hover {
  background: var(--primary-green);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-bottom p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 640px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================
   10. FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--space-lg);
}

label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: var(--fw-medium);
  color: var(--charcoal);
}

input,
textarea,
select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--light-gray);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  background: var(--white);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
  font-family: var(--font-primary);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   11. ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Animation utility classes */
.animate-fade-in {
  animation: fadeIn 0.6s ease-out;
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

/* Scroll animation setup */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
}

.scroll-animate.visible {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* ============================================
   12. UTILITY CLASSES
   ============================================ */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.text-primary {
  color: var(--primary-green);
}

.text-secondary {
  color: var(--primary-teal);
}

.text-muted {
  color: var(--medium-gray);
}

.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.pt-xs { padding-top: var(--space-xs); }
.pt-sm { padding-top: var(--space-sm); }
.pt-md { padding-top: var(--space-md); }
.pt-lg { padding-top: var(--space-lg); }
.pt-xl { padding-top: var(--space-xl); }

.pb-xs { padding-bottom: var(--space-xs); }
.pb-sm { padding-bottom: var(--space-sm); }
.pb-md { padding-bottom: var(--space-md); }
.pb-lg { padding-bottom: var(--space-lg); }
.pb-xl { padding-bottom: var(--space-xl); }

/* Visibility */
.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

/* Only show on mobile */
@media (max-width: 768px) {
  .hide-mobile {
    display: none !important;
  }
}

@media (min-width: 769px) {
  .show-mobile {
    display: none !important;
  }
}
/* ============================================
   12. REDESIGNED HOMEPAGE STYLES
   ============================================ */

/* Hero Badge */
.hero-badge {
  display: none;
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-lg);
  border: 1px solid rgba(255, 255, 255, 0.3);
  animation: fadeInUp 1s ease-out 0.1s both;
}

/* Hero Features */
.hero-features {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
  animation: fadeInUp 1s ease-out 0.4s both;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  color: var(--charcoal);
  font-size: var(--font-size-sm);
  font-weight: var(--fw-medium);
}

.feature-icon {
  font-size: 1.5rem;
}

/* Benefit Cards */
.benefit-card {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 2px solid var(--light-gray);
  transition: all var(--transition-base);
}

.benefit-card:hover {
  border-color: var(--primary-green);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}

.benefit-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
}

.benefit-card h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: var(--charcoal);
}

.benefit-card p {
  color: var(--medium-gray);
  font-size: var(--font-size-sm);
  line-height: 1.8;
}

/* Section Light Background */
.section-light {
  background: var(--off-white);
}

/* Metric Cards */
.metric-card {
  text-align: center;
  padding: var(--space-lg) 0;
}

.metric-card h3 {
  font-size: var(--font-size-4xl);
  font-weight: var(--fw-bold);
  color: var(--white);
  margin-bottom: var(--space-sm);
  line-height: 1;
}

.metric-card p {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.9);
  font-weight: var(--fw-medium);
}

/* Service Cards */
.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-12px);
  box-shadow: var(--shadow-xl);
}

.service-header {
  padding: var(--space-lg);
  background: var(--off-white);
}

.service-header h3 {
  font-size: var(--font-size-xl);
  color: var(--charcoal);
  margin-bottom: var(--space-sm);
}

.service-badge {
  display: inline-block;
  background: var(--lime-accent);
  color: var(--charcoal);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: var(--font-size-xs);
  font-weight: var(--fw-bold);
  margin-top: var(--space-sm);
}

.service-description {
  padding: 0 var(--space-lg);
  padding-top: var(--space-lg);
  color: var(--medium-gray);
  font-size: var(--font-size-sm);
}

.service-features {
  list-style: none;
  padding: var(--space-lg);
  border-top: 1px solid var(--light-gray);
  flex-grow: 1;
}

.service-features li {
  padding: var(--space-sm) 0;
  color: var(--charcoal);
  font-size: var(--font-size-sm);
}

.service-meta {
  padding: 0 var(--space-lg);
  margin-bottom: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  font-size: var(--font-size-xs);
  color: var(--medium-gray);
}

.btn-block {
  width: calc(100% - var(--space-lg) * 2);
  margin: var(--space-lg);
}

/* Expertise Items */
.expertise-item {
  background: var(--white);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid var(--light-gray);
  transition: all var(--transition-base);
}

.expertise-item:hover {
  border-color: var(--primary-green);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}

.expertise-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  display: block;
}

.expertise-item h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
  color: var(--charcoal);
}

.expertise-item p {
  color: var(--medium-gray);
  font-size: var(--font-size-sm);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.text-link {
  color: var(--primary-green);
  font-weight: var(--fw-medium);
  transition: gap var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.text-link:hover {
  gap: var(--space-sm);
}

/* Utility Classes */
.mt-0 {
  margin-top: 0;
}

.mt-xl {
  margin-top: var(--space-xl);
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--medium-gray);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Scroll Animation */
.scroll-animate {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 0.6s ease-out forwards;
}

@media (max-width: 768px) {
  .hero-features {
    gap: var(--space-lg);
  }
  
  .feature-item {
    flex-direction: column;
    gap: var(--space-sm);
  }
}